Darning device



Nam M, 1956 M. JBAQMgAR DARNING DEVICE .Filezi' March 29, 19499 I INVENTOR. m fia 1129M BY ATTORN Eh.

Patented Nov. 14, 1950 STATES PAT NT OFFICE DARNING DEVICE Max D. Baumgart, New York, N. Y.

Application March 29, 1949, Serial No. 84,149

4 Claims.

reference characters denote corresponding parts:

Fig. 1 is a perspective view of the device in position of use and showing the darning operation;

Fig. 2 is a vertical section on line 2-2 of Fig. 1.

Fig. 3 is an enlarged section on line 3-3 of Fig. 2 seen in the direction of the arrows, and

Fig. 4 is a similarly enlarged cross section on line 44 of Fi 3.

Referring in detail to the drawing, the device In is composed of two complementary semiovally curved plates ll, l2 of about equal size which are adapted in assembled or operating position to be in the same plane,-with the diametrically extending straight edges Ha, Ha, opposite one another. These plates are each provided on their curved circumferences with a groove 2|a, in which fits a rubber ring 2|, or the like adapted to hold the two plates resiliently assembled and to clamp the edges of the material M 'to be darned between said plates during the darning operation. Permanently fixed to the lower part of one of the plates, as H, is a block I3 of any suitable material, whose bottom edge l3 extends parallel to and is even with the straight edge Ila thereof. Flxedly mounted in this block l3, are a number of uniformly spaced members l5 projecting transversely through said block and outwardly a suitable distance, each member being formed at its outer end with a forwardly curved hook portion I511.

The upper face of said block is formed with a circularly curved longitudinally extending groove l3a serving as socket for a cylindrical member or roller [4. This roller is rotatively held in position on said block by metal straps It or the like. Fixedly mounted on this roller I4 and projecting transversely and outwardly from this roller are another series of similar hook shaped members l1. These members are uniformly spaced similar to hooks l5 and project through transyersal slots l3. provided in the block l3 and ex- 2 tending throughout the height of the latter, permitting the series of hook members ll to be swung forwardly and rearwardly through said block, as best shown in Fig. 4. The swinging of the hooks I! may be best effected by a finger l8 fixed to and projecting upwardly from the roller [4 and which under the action of a plate spring I9 or the like has the tendency to hold the hooks l'l out of alignment with the series of hooks IS.

The operation is as follows:

After clamping the material M between the two plates with the hole H to be darned somewhere below the hooks, the thread If is successively stitched along the edge of the hole H, drawn across the latter and passed over the opposite hooks, alternately in opposite directions to form warps. When the hole H has been entirely covered by the warps, the weft thread t is passed transversely alternately from one side to the other, through the warp shed formed between the hooks l5 and H, which shed is formed by turning the roller alternately in opposite directions, as indicated in Figs. 2 and 4.

The finger I8 may be conveniently manipulated by hand or by means of a string 20 attached thereto and suitably looped around the users foot.

What I claim is:

1. A manually operable darning last or device, comprising a pair of plates adapted to be resiliently joined to clamp the material to be darned between them, a member fixed to one of said plates, a series of hooked elements fixed thereon in a uniformly spaced relationship, a cylindrical member rotatably borne on said fixed member, a similar series of hooked elements fixed on said rotatable member in a similar uniform spaced relationship, said hooked elements being adapted to support lengths of a thread to form warps, said second series being adapted to be swung rearwardly and forwardly to form a Warp shed between themselves and the fixed elements for the alternate passage of a weft thread through the warp shed after the hole of the material has been covered by said warps, and means for turning the said turnable member.

2. In a manually operable darning last or device, according to claim 1, in which the two plates are semi-ovally curved circumferentially and each has a straight base, said curved circumferences being each grooved, and a rubber ring adapted to fit in said grooves to resiliently join said plates in assembled position and clamp the edges of the material to be darned between the said straight bases of the said plates.

3. In a manually operable darning last or device, according to claim 1, in which the member fixed to one of said plates is transversely slotted for the passage of said second series of hooked elements, permitting the latter to be swung forwardly and rearwardly.

4. In a manually operable darning last or device according to claim 1 in which a spring urged finger projects from said rotatable member, for the manipulation of the latter.

MAX D. BAUMGART.

The following references are of record in the REFERENCES CITED file of this patent:

UNITED STATES PATENTS Number Number Name Date Hardy Mar. 22, 1892 Schafor Jan. 19, 1897 FQREIGN PATENTS I Country Date Germany Jan. 9, 1891 

